thionine

noun

thi·​o·​nine ˈthī-ə-ˌnēn How to pronounce thionine (audio) -nən How to pronounce thionine (audio)
: a dark crystalline basic thiazine dye that is used chiefly as a biological stain

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Cite this Entry

“Thionine.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/thionine. Accessed 13 Nov. 2024.

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